<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3//EN">
<HTML><HEAD>
<TITLE>IBM Visualization Data Explorer Programmer&#39;s Reference</TITLE>

<META HTTP-EQUIV="abstract" CONTENT="IBM Visualization Data Explorer
Programmer&#39;s Reference">
<META HTTP-EQUIV="contact" CONTENT="IBM Visualization Data Explorer
(ibmdx@watson.ibm.com)">
<META HTTP-EQUIV="owner" CONTENT="IBM Visualization Data Explorer
(ibmdx@watson.ibm.com)">
<META HTTP-EQUIV="updated" CONTENT="Tue, 16 Sep 1997 ">
<META HTTP-EQUIV="review" CONTENT="Fri, 14 Aug 1998 ">

<META HTTP-EQUIV="keywords" CONTENT="GRAPHICS VISUALIZATION VISUAL PROGRAM DATA
MINING">
<meta http-equiv="content-type" content="text/html;charset=ISO-8859-1">
</HEAD><BODY BGCOLOR="#FFFFFF">

<A NAME="Top_Of_Page"></A>
<H1>IBM Visualization Data Explorer Programmer&#39;s Reference</H1>
<B>&#91; <A HREF="#Bot_Of_Page">Bottom of Page</A> &#124; <A
HREF="progu296.htm">Previous Page</A> &#124; <A HREF="progu298.htm">Next
Page</A> &#124; <A HREF="../proguide.htm#ToC">Table of Contents</A> &#124; <A
HREF="progu097.htm#PToC20">Partial Table of Contents</A> &#124; <A
HREF="progu344.htm#HDRINDEX_START">Index</A> &#93;</B><HR><P>
<H3><A NAME="HDRDXRXYZ" HREF="progu097.htm#PToC_391">DXRotateX, DXRotateY,
DXRotateZ, DXScale, DXTranslate, DXMat</A></H3>
<A NAME="IDX2020"></A>
<A NAME="IDX2021"></A>
<A NAME="IDX2022"></A>
<A NAME="IDX2023"></A>
<A NAME="IDX2024"></A>
<A NAME="IDX2025"></A>
<A NAME="IDX2026"></A>
<A NAME="IDX2027"></A>
<A NAME="IDX2028"></A>
<A NAME="IDX2029"></A>
<A NAME="IDX2030"></A>
<A NAME="IDX2031"></A>
<P><STRONG>Function</STRONG>
<P>Manipulate Transform matrices.
<P><STRONG>Syntax</STRONG>
<BR>
<TT><STRONG><BR>
&#35;include &lt;dx/dx.h&gt;<BR>
<P><BR>
Matrix DXRotateX(Angle angle)<BR>
Matrix DXRotateY(Angle angle)<BR>
Matrix DXRotateZ(Angle angle)<BR>
Matrix DXScale(double x, double y, double z)<BR>
Matrix DXTranslate(Vector v)<BR>
Matrix DXMat(double a, double b, double c,<BR>
             double d, double e, double f,<BR>
             double g, double h, double i,<BR>
             double j, double k, double l)<BR>
</STRONG></TT><BR>
<P><STRONG>Functional Details</STRONG>
<P>Manipulate Transform matrices.
<TT><STRONG>
DXRotateX, DXRotateY,
</STRONG></TT>
and
<TT><STRONG>
DXRotateZ
</STRONG></TT>
return a Matrix that specifies
a rotation about the <I>x</I>, <I>y</I>, or <I>z</I> axis
by angle <TT><STRONG>angle</STRONG></TT> in radians.
<P><TT><STRONG>
DXScale
</STRONG></TT>
returns a Matrix that specifies
a scaling by amounts
<TT><STRONG>x</STRONG></TT>,
<TT><STRONG>y</STRONG></TT>, and
<TT><STRONG>z</STRONG></TT>
along the
<I>x</I>, <I>y</I>, and
<I>z</I> axes.
<P><TT><STRONG>
DXTranslate
</STRONG></TT>
returns a Matrix that specifies a translation by
<TT><STRONG>v</STRONG></TT>.
<P><TT><STRONG>
DXMat
</STRONG></TT>
returns a Matrix with the specified components.
<P>A
<TT><STRONG>
Matrix
</STRONG></TT>
is defined as follows:
<BR>
<TT><STRONG><BR>
typedef struct matrix {<BR>
    /* xA + b */<BR>
    float A&#91;3&#93;&#91;3&#93;;<BR>
    float b&#91;3&#93;;<BR>
} Matrix;<BR>
</STRONG></TT><BR>
<P>An
<TT><STRONG>
Angle
</STRONG></TT>
is in radians and is defined as follows:
<BR>
<TT><STRONG><BR>
typedef double Angle;<BR>
</STRONG></TT><BR>
<P><STRONG>Return Value</STRONG>
<P>Returns the resulting Matrix.
<P><STRONG>See Also</STRONG>
<P>
<TT><STRONG>
<A HREF="progu120.htm#HDRDXCPLUS">DXConcatenate, DXInvert, DXTranspose,
DXAdjointTranspose, DXDeterminant, DXApply</A>,
<A HREF="progu108.htm#HDRDXATM">DXApplyTransform</A>,
<A HREF="progu263.htm#HDRDXNXF">DXNewXform</A>
</STRONG></TT>
<P>
<A HREF="progu063.htm#HDRMATRXSC">"Transformation Matrices"</A>.
<P><P>
<P><HR><B>&#91; <A HREF="#Top_Of_Page">Top of Page</A> &#124; <A
HREF="progu296.htm">Previous Page</A> &#124; <A HREF="progu298.htm">Next
Page</A> &#124; <A HREF="../proguide.htm#ToC">Table of Contents</A> &#124; <A
HREF="progu097.htm#PToC20">Partial Table of Contents</A> &#124; <A
HREF="progu344.htm#HDRINDEX_START">Index</A> &#93;</B> <br><b>&#91;<a
href="../allguide.htm">Data Explorer Documentation</a>&nbsp;&#124;&nbsp;<a
href="../qikguide.htm">QuickStart Guide</a>&nbsp;&#124;&nbsp;<a
href="../usrguide.htm">User&#39;s Guide</a>&nbsp;&#124;&nbsp;<a
href="../refguide.htm">User&#39;s Reference</a>&nbsp;&#124;&nbsp;<a
href="../proguide.htm">Programmer&#39;s Reference</a>&nbsp;&#124;&nbsp;<a
href="../insguide.htm">Installation and Configuration
Guide</a>&nbsp;&#93;</b><br><p><b>&#91;<a
href="http://www.research.ibm.com/dx">Data Explorer Home
Page</a>&#93;</b><p><HR ALIGN=LEFT WIDTH=600><b>&#91;<A
HREF="http://www.ibm.com/">IBM Home Page</A>&nbsp;&#124;&nbsp;<A
HREF="http://www.ibm.com/Orders/">Order</A>&nbsp;&#124;&nbsp;<A
HREF="http://www.ibm.com/Search/">Search</A>&nbsp;&#124;&nbsp;<A
HREF="http://www.ibm.com/Assist/">Contact IBM</A>&nbsp;&#124;&nbsp;<A
HREF="http://www.ibm.com/Legal/">Legal</A>&nbsp;&#93;</b><hr><p>
<A NAME="Bot_Of_Page"></A>
</BODY></HTML>
